2846.10.00 - Cerium compounds

This HTS category, 2846.10.00, specifically encompasses compounds of cerium. Cerium, a rare-earth metal, forms various inorganic and organic compounds that are classified here. These compounds are typically characterized by cerium's presence as a primary component, and their applications can range widely within industrial processes, including as catalysts, in glass manufacturing, and in metallurgy.

Within Chapter 28, which deals with inorganic chemicals, this heading is distinct from its sibling category, 2846.90, which covers compounds of other rare-earth metals, yttrium, scandium, or mixtures thereof. Therefore, the key differentiator for classification under 2846.10.00 is the presence of cerium as the sole or dominant rare-earth metal component in the compound.

This category is further refined by its subcategories, which provide more granular classification based on the specific form of the cerium compound. Subcategory 2846.10.00.10 is designated for cerium oxides, representing a common and important class of cerium compounds. The residual subcategory, 2846.10.00.50, is reserved for all other cerium compounds not specifically listed as oxides, ensuring comprehensive coverage of cerium-based chemical products.